Improvement



UNITED STATES :Prenant:w OFFICE,

JAMES O. LINNELL, OF ADRIAN, ASSIGNOR OF ONE-HALF HIS RIGHT TO S. S. LINNELL, OF KALAMAZOO, MICHIGAN.

IMPROVEMENTJN EXHAUST-PIPES FOR LOCOMOTIVES.

Specification forming part of Letters Patent No. 212,560, dated February 25, 1879;

September 11, 187S.

To all whom it may concern:

Beit known that I, JAMES C. LINNELL, of Adrian, in the county of Lenawee and State of Michigan, have invented certain new and useful Improvements in Exhaust-Pipes for Locomotives; and I do hereby declare that the following is a full, clear, and exact description thereof.

This invention relates to certain improvements in exhaust-pipes for locomotives; and the invention consists in the construction and arrangement of parts, which will be hereinafter more fully set forth.

In order to enable others skilled in the art to which myinvention appertains to make and use the same, I will now proceed to describe its construction and operation, reference being had to the accompanying drawings, which form a part of this specification, and in which- Figure l is a view showing the double nozzle in position under the smoke-stack 0f a 1ocomotlve, the nozzle being in section. Fig. 2 is a central vertical section of the double nozzle, taken on line a' of Fig. 3. Fig. 3 isa top View, and Fig. et is a bottom view.

In the drawings, A represents the double nozzle. This nozzle is formed with two steampassages, C D, and a central passage,`E.

The steam-passage D, connecting with 011e cylinder a suitable distance above the lower end of the nozzle, extends completely around the central passage, E, as shown in Fig. 3 of drawings.

The steam-passage C, connecting with the other cylinder a suitable distance above the application filed lower end of the nozzle, extends completely 'around that part of the passage D extending around the central passage, E, as shown in Figs. 1, 2, and 3 of drawings.

The central passage, E, and pipe F extend up above the steam-passages C and D, as shown in Figs. 1 and 2'0f drawings.

The operation is as follows: When the exhaust-steam first comes from either cylinder, its greatest force creates a partial vacuum in the space between the passage E and pipe F and the other cylinder, by sucking the steam out, thusalternately reducing the back-pressure in each cylinder. The steam, on passing beyond ,the pipe F, creates a strong draft through the air-passage E.

Havingl thus fully described my invention, what I claim a's new. and desire to secure by Letters Patent, is-

l. An exhaust-nozzle having two independent steam-passages, C and D, the passage D surrounding the central passage, E, and the passage (l surrounding the passage D, constructed and arranged as shown and set forth.

2. An exhaust-nozzle having a central passage, E, pipe F, and two independent steampassa ges, C and D, constructed and arranged as shown and set forth.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

JAMES C. LINNELL. Witnesses:

It. B. RoBBINs, J oHN L. ScHooLcRAr'r. 

